I’ve had my 200ah 175ah BMS Amptron Lithium for a little over 12 months. We routinely draw 100-120ah for appliances like a coffee machine and induction stove, not to mention running a 85l upright and 40l freezer full time. Never had an issue. We have been doing some of the roughest roads in Australia and the battery has performed exactly as advertised. I have also contacted the company regarding C ratings and they were absolutely fantastic and more than willing to help me and offer advice. 10/10 after heavy prolonged use.